Stop mechanism for phonographs.



F. S BOERRIES.- STOP MECHANISM FOR PHONOGRAPHS.

APPLICATION FILED JULY 12. 1913.

1,177,227 7 Patented Mar. 28, 1916.

F. s. BO ERRIES. STOP MECHANISM FOR PHONOGRAPHS APPLICATION FILED JULY 12. 19l3.

Patentd Mar. 28, 1916.

2 SHEETS-SHEET 2- FREDEBIC STEPHEN BOERRIES, OF PARIS, FRANCE.

STU]? MECHANISM FOR PI-IONOGRAPHS.

Application. filed July 12,1912.

and stop mechanism, casing and motor- Inechanisni said parts being constructed to eliminate'all vibrations and the objectionable features caused thereby.

The objects of my invention reside in a resiliently supported motor suspended in air, means for regulating the speed of the disk; and instantaneous or regulated stopping of the disk.

With these and other objects in view the invention consists of the improvements hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawings, in which like reference characters designate similar parts throughout the several views of the invention,'and in which: Figure 1 is a longitudinal view of my invention. Fig. 2 is a plan view of the speed regulator. Fig. 3 is a plan view of the automatic stop mechanism. Fig. l is a longitudinal view of the mechanism.

Referring to the drawings and particu-- larly to Fig.1, I have there shown a preferred embodiment of my invention in which 1 designates an electric motor suspended in mid-air through medium of straps 2 fastened at 7 to cross bars 3, which have their ends secured to supports 4 and 5. Resilient washers 6, 6, are provided for supports 4 and 5 and are adapted to support the rod 3. The aforesaid construction provides an clas tic support for the motor, and eliminates.

all vibrations due to the operation of the same. A belt wheel 9 is secured to the shaft of the motor 1 and connected to the belt wheel 'lOby means of a belt 8. The belt wheel 10 is non-rotatably mounted on a shaft 11, which has non-rotatably but slidably mounted thereon a friction driving wheel'12. Sleeves 14 non-rotatably and slid ably mounted on saidshaft ll-and integral With said wheel 12 are provided with a con- Specification of Letters Patent.

thereto a cam 27 by the disk 19. A rheostat position.

instantaneous stop v rammed Mar. as, 1916. Serial No. 778,763.

necting rod 15 rotatably mounted on sleeves 14, and having its other end provided with a ratchet 16 operatively engaged by a pinion 17. IA lever 69 provided with a sleeve is adapted to engage a. shaft 66 formed integral with pinion 17 and serves to slide the friction wheel 12 in one of two directions, thereby increasing or decreasing the speed of a friction disk 13, mounted on a hollow shaft 18 which is adapted to receive the shaft of disk 19. The shaft 18 has secured which lowers the shaft 18 and its complemental disk 13 adjacent the friction wheel 12 when the motor is operated, as will hereafter more fully appear.

The disk record 20 adapted to receive the stylusisecured to a reproducer 51 is carried 21 provided with a. contact lever 22 and suitable contact points 71, is connected to the motor 1. A lever 23 is'pivotallysecured to the contact lever 22 and has its other end pivoted to a plate 24 which in turn is pivotally secured to the shaft 25, provided with a spring 72 to normally force the plate 24 in a vertical A lever 29 having one end secured to the shaft has a bell-crank 3O pivotally secured to its other end. A plate 31 is formed integral with the end of the bell crank and having its other end adapted to i'eleasably engage an abutment 26 formed on the plate 24:.

mounted in the bearing 48 and has its lower portion 49 rotatably n ounted therein, independent of the direction of rotation of the horn. A vertical support 46 is provided and contains a rotatable connection 39, having one end secured to the portion 49 and the other end has non-rotatably mountedthereon a collar a2. Bearing brackets 76'are formed .in the support 46 and serve to rotatably retain a member 36 having provided at one end thereof'a balller 37 and an integral collar 35," secured to the other end thereof.

A. movable stop mechanism is secured to the other end of elastic bands 34 and 38 which haveone end secured to collars and m respectively. The'operation of the looking member will hereafter be more fully de- 7 end of the bell crank 30 and abutment 26 and serves to manually release the abutment abutment 26 into engagement with the crank 30. The cam 27 being secured to the shaft 25 is given a part of a turn and serves to lower the shaft 18 and its complemental disk 13 into frictional engagement with the friction wheel 12. The plate disk 19 and its eomplemeutal shaft are also rotated. Should it he desired to stop the rotation of the plate 19. before the disk has been completely played. the shaft 45 is rotated anti-clockwise. which causes its actuator H to press against the crank 30. and release the abutment '26. The spring 7:? then serves to raise the plate 24. and return the connection '23 and lever '22 to its initial position. and the cam 27 will be returned to its original position. thereby raising the disk 13 out of engagement with ,the friction wheel 12.

In order that the disk and" motor may be automatically stopped when the disk has beenplayed. I provide the bafiler 37 which is placed with its end adjacent the inner end of the playing'surface of the disk.

The band 34: which is rotating simultaneously with said bafiier carries on its other end an automatic stop mechanism which actuates the plate 31, and releases the abutment. 26 and its complemental parts as has heretofore been described. The metal band 38 has one end secured to the automatic release and its other end secured to Lhe collar a which is rotatable with the arm I9. and its complement-a1 stylus. Anobstruction 43 is conveniently attached so as to automatically cock the automatic release after the same has been operated. A depending stud 42 secured to the plate 42 is adapted to slide behind a fixed bar -13 attached to the box of the gramophone and to cock the hammer 32after it has.been released. The automatic stoppage of the gramophone when the record reaches the end of its course is obtained in the followjacent to the neutral circle 20 of said record, as shown in Fig. 3. This movement of the rod 37 causes the parts carried thereby to take up the positions shown in said figure. owing to the fact that the rod 37 and the band 34 are secured on a common axle 36. The hammer 32 is held cocked by means of a pin 75 on the plate i2 engaging against the action of a coil spring 79, a shoulder of the plate 77. One end of said spring is secured to the fixed pivot 59 and its other end bears upon the plate 77, pivoted at 78. to which is seeuredthe band 34: and which is controlled by a spring. The gramophone is now started by moving the arm '12:! into the position shown in Fig. 1, thus causing the lever 30 to engage over the stud 26. The rod 38 keyed to the spindle 39 is thus connected to the trumpet arm 26 and carries at its end the adjustable screw 41." It follows the movement imparted to said trumpet arm by the record. I At the moment when the needle or stya s reaches the end of its course, the screw 41 abuts against the plate 77 causing it to turn on its pivot '78 and the hammer 32 under the actioirof the spring 79 pivots around the axle 80 and strikes against theplate'3l. Thus. the-lever 30 connected with. the plate 31 releases the stub 26, the arms 22, 23 and 24 return into their initial position under the action of the spring 72 which is wound around the axle 25, and the lever- 22 is brought back to the neutral contact 71 of the rheostat for stopping the motor.

I have herein described a preferred embodiment of my invention as is best known to me atthe present time for practising the same. but I do not limit myself to the exact description or design shown. as I reserve the right to make minor changes in both without departing from the spirit of my invention and the scope of the appended 'claims.

mental motor mechanism comprising in combination. a frame. a motor resiliently suspended from said frame, a rh'eostat secured to said frame connected with said motor. a driven member rotated by said motor, a disk adapted to be rotated by said member. normally out of engagement with said member. and means for automatically bringing said disk into engagement with said member. a manual and automatic cutoff whereby said current is cut-ofl and said disk autonniticallv brought out of engagement with said member, substantially as described.

'2. A phonograph comprising its complemental motor mechanism comprising in combination. a frame. a motor resiliently supported below said frame, a disk revolubly mounted on said frame and adapted to be displaced in a vertical direction. a power transmissionintermediate said disk and motor. a rheostat provided with an arm adapted to simultaneously operate said motor and lower said disk. means adapted to retain said disk. in operative position, a

bafller adapted to be positioned over said disk, and means coacting between said bafiler and said disk retaining means to automatically raise said disk and shut off said motor.

3. YA motor mechanism for phonographs comprising a frame, a motor resiliently suspended from said frame, a friction.

driven wheel normally out of operative position, a slidably mounted friction driv ng wheel adapted to be connected to said motor,

a rheostat secured to said frame provided with a lever, a plate pivotally mounted on a shaft said plate untedin said frame normally retained in a vertical position and adapted to be secured to the other end of .said lever, a cam secured to said plate and driven dis k,'an abutment seciired to said plate, a lever havingone end mounted in said shaft and its other end pivotally retaining a bell crank, and means engaging said bellcrank for automatically or insta l taneously stopping saidmotor and disk, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ratntmctrnrami BOERRIES.

Witnesses: 7 v

HANSON C. Coxn, MIGUEL FnRoL'o, 

